/*
 *   Copyright 2021 zzh
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 */

package com.aduib.boot.common.json;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;

import java.io.IOException;
import java.util.Objects;

/**
 * @description: NullArrayJsonSerializer
 * @author: zzh
 * @date: 2021/9/30 13:40
 */
public class NullArrayJsonSerializer extends JsonSerializer<Object> {
  @Override
  public void serialize(
      Object value, JsonGenerator jsonGenerator, SerializerProvider serializerProvider)
      throws IOException {
    if (Objects.isNull(value)) {
      jsonGenerator.writeStartArray();
      jsonGenerator.writeEndArray();
    } else {
      jsonGenerator.writeObject(value);
    }
  }
}
